Finding the Fourth Proportional to 311,338.93, 467,020.69 and 86,718.99
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Solution
The fourth proportional to 311,338.93, 467,020.69 and 86,718.99 is: 130,081.92
Step by Step Solution
- Step 1: Write the proportion equation
311,338.93 : 467,020.69 = 86,718.99 : x - Step 2: Convert to fraction form
311,338.93/467,020.69 = 86,718.99/x - Step 3: Cross multiply
311,338.93x = 467,020.69 × 86,718.99 - Step 4: Simplify right side
311,338.93x = 40,499,563,972.45 - Step 5: Solve for x
x = 40,499,563,972.45/311,338.93 - Step 6: Final answer
x = 130,081.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.